baber/WOPTO huggingface dataset:
Patent GB-355615-A (GB)
Title: Improved means for delivering liquids at measured rates
IPC: C02F1/68
Filed: 1930-12-06
Abstract: 355,615. Purifying water. HOWLES, F., Glenluce, Water Park Road, Broughton Park, Manchester. Dec. 6, 1930, No. 36882. Addition to 339,061, [Class 46, Filtering &c.]. [Class 46.] The apparatus described in the parent Specification is modified by the provision of a tube i, which may have an enlargement j, establishing communication between the upper and lower vessels a, c. An inlet connection g and outlet valve f are also provided.
Patent GB-1361606-A (GB)
Title: Spray drying
IPC: B01D1/20
Filed: 1971-07-30
Abstract: 1361606 Spray drying M I C R O N A I R (AERIAL) Ltd 30 July 1971 [30 July 1970] 36901/70 Headings B1B and B2F  Dried powder is obtained by evaporation of liquid containing dissolved or suspended solids by spraying it into hot air in chamber 1 through coarse and fine perforations in the coaxial cylindrical sleeves 11, 13 of an atomizer 5 which is rotated on shaft 6 by motor 7 and belt 10. The inner sleeve 11 has large perforations 12 and breaks-up the liquid, supplied through tube 18 to plate 19, into coarse droplet spray which impinges upon and is atomized to the desired droplet size by the outer sleeve of fine mesh gauze 14. Plate 19 has a toothed rim 20, the successive teeth being slightly upturned, flat and slightly downturned around the periphery. Plate 19 may be omitted, and then tube 18 terminates in a nozzle which discharges radially onto sleeve 11. In an alternative atomiser, Fig. 3, which need not be arranged vertically, the liquid-feed tube 18 extends through a hollow drive shaft 6 and has a nozzle 24 with two rings of jet apper tures. Flow of liquid to the nozzle is controlled by a spring-loaded stainless steel ball 29 which is adjustably spaced from a seating 30 by a push-rod 26 passing through the tube 18 and having an adjusting screw 28 at its upper end. Fan blades 23 of adjustable pitch are carried by the drive shaft 6. Liquid from the nozzle passes through inner and outer sleeves 11, 13 with coarse and fine perforation respectively.
Patent GB-641226-A (GB)
Title: An improved drying cabinet
IPC: D06F58/10
Filed: 1946-12-16
Abstract: 641,226. Drying-cabinets. DAVIES, A., and DAVIES, S. Dec. 16, 1946, No. 36970 [Class 34(i)] The door b of a drying-cabinet has a glass panel b<SP>2</SP> on which moisture from a closed heated air circuit condenses. The moisture collects in a channel k and passes to a cup m. Similar panels &c. may be arranged in the cabinet sides. Electric elements g heat the air which is circulated, Fig. 3, by a fan j. Air inlet means are provided at n.
Patent GB-1123500-A (GB)
Title: Process for the disproportionation of acyclic olefins
Inventor: HOWMAN ERIC JAMES
IPC: C07C6/04
Filed: 1966-08-19
Abstract: Acyclic olefins and mixtures thereof are dis-proportionated or co-reacted in the presence of a catalyst comprising a mixture of rhenium heptoxide and alumina, the reaction pressure being just sufficient to maintain the reaction product completely in the liquid phase.  An inert diluent, e.g. paraffin or cyclo-paraffin, may be present.  Examples illustrate the conversion of propylene to ethylene and butene-2.
Patent GB-786033-A (GB)
Title: Improvements in magnetic storage devices
IPC: G06F15/00
Filed: 1950-06-23
Abstract: 786,033. Electric digital-data storage apparatus. DIRKS, G. June 23, 1950 [Oct. 1, 1948], No. 37214/54. Divided out of 786,021. Drawings to Specification. Class 106 (1). [Also in Group XXXVIII] A selective storage means comprises a rotation symmetrical magnetizable signal carrier having relative cyclic movement with respect to signal sensing and/or recording means, and selecting means operating in dependence on the relative movement. The cyclic storage means may be a magnetizable drum or a disc, having continuous or intermittent motion, on which data signals are recorded together with synchronizing signals which may be recorded mechanically, magnetically, electrically or photographically to provide a time base for the system. Read/record heads for the data signals may be arranged side-by-side, axially in the case of a drum or radially for a disc; alternatively, one or more signal heads may be adapted to move by screw-and-nut mechanism to desired tracks. If the heads are mutually displaced angularly, signals may be transferred from one head to another so as to change digit values and so perform arithmetical functions. The actual signals used for recording may take a variety of forms employing pulses and waveforms of various frequencies, the digits or other characters usually being represented by the time in a cycle at which a change occurs. Data may be entered by keyboard, punched cards, or tapes having perforations, magnetizations, or other detectable markings. Specification 786,034 is referred to in this connection. Selection of signal heads may be controlled by a multi-contact rotary switch operating in synchronism with the rotation of the storage means. Other distributers such as an inductive type wherein a series of pairs of inductive elements are successively and momentarily linked by a moving yoke, or a cathode-ray tube having a plurality of target plates linked to thyratron amplifiers, may be used. By means of a distributing switch a stroboscopic visual indication of the selected signals sensed from the record means can be obtained, as described in Specification 786,026. Selection of the required data from the storage means may be controlled by a comparing device of the type described in Specification 786,039. Specifications 786,022, 786,024, [both in Group XVI], 786,027, 786,028, [Group XXXVIII], and 786,041, also are referred to.
Patent GB-1237887-A (GB)
Title: A device for dosing additives into synthetic polymer melts
Inventor: HRIVNAK PAVEL
IPC: D01D1/06
Filed: 1968-08-05
Abstract: 1,237,887. Mixing liquids in proportion. VYSKUMNY USTAV CHEMICKYCH VLAKEN VO SVITE. 5 Aug., 1968 [7 Aug., 1967], No. 37219/68. Heading B1C. A device for dosing additives into a polymer melt flowing in pipe 6 comprises a container 1 for the additives, pumps 2, 5 for pumping the additives into the polymer melt, pump 5 essentially functioning as a non- return valve, and gearing 10 for regulating the speeds of pumps 2, 5 according to the speed of pump 7 in order to mix the additives with the polymer melt in proportionate quantities. Pump 5, and the additive supply tube thereto, are provided with jackets through which a heat transfer medium may be circulated. Pipe 6 may also be provided with such a jacket. The pumps may be gear pumps and the additive may be fed using gas under pressure through line 3. The speed of pump 7 may be controlled with reference to the demand for the melt downstream thereof.
Patent GB-1500726-A (GB)
Title: Level detectors
IPC: G01F23/74
Filed: 1975-07-08
Abstract: 1500726 Liquid level indication ENGLISH ELECTRIC VALVE CO Ltd 8 July 1975 [27 Aug 1974] 37318/74 Heading G1H [Also in Division H1] A liquid level detector of the kind in which a float in a chamber connected to the liquid reservoir or container contains a permanent magnet which influences a reed contact switch, e.g. in a warning circuit, includes, for testing, means for controllably opposing the force of the magnet to change the state of the switch, even with a normal level of liquid. As described the device is fitted to a chamber 7 connected to a vapour cooled Klystron boiler unit 1 and comprises a float 10 containing a magnet 11 which holds closed a reed switch 12 at normal liquid levels. An electromagnet 15 is sited so that, when energized, it opposes the magnet 11 and opens the switch.
Patent GB-1500555-A (GB)
Title: Coke oven equipment and its operation
IPC: C10B41/02
Filed: 1976-09-10
Abstract: 1500555 Indicating position of coke pusher machine BRITISH STEEL CORP 10 Sept 1976 [12 Sept 1975] 37611/75 Heading F4B A coke oven pusher machine, which may also carry a coke levelling bar 28, is aligned with a coke oven in a battery 10, by the illumination of an indicator fixed in relation to the coke oven, by a narrow beam of light from a projector 31 mounted on the pusher machine. The indicators 30 are preferably mounted on the centre line above each oven door, and a laser beam projector 31 is mounted above the operator's cabin on the pusher machine in the same vertical plane as the mid line of the pusher ram 26. A leveller bar 28 is spaced to operate on a coke oven 3 or 4 away from that being pushed, and the pusher machine carries door opening and paint cleaning equipment.
Patent GB-1201318-A (GB)
Title: Improvements in or relating to polyester materials
IPC: C08G63/672
Filed: 1967-08-16
Abstract: 1,201,318. Polyester coatings. MINNESOTA MINING & MFG. CO. 16 Aug., 1967 [17 Aug., 1966], No. 37767/67. Heading B2E. [Also in Division C3] Substrates, e.g. stainless steel, aluminium, or copper, or glass-cloth or paper, may be coated with a solution, e.g. in chloroform, of a polyester derived from a dicarboxylic acid HOOCR-COOH and a diol (B) wherein R is a C2-12 hydrocarbon, oxahydrocarbon or thiahydrocarbon group. Ar is a phenyl or halophenyl group, Ar<SP>1</SP> is a phenylene group, and R<SP>1</SP> is -0-, -S-, -NH-, or -CH 2 -, or -Ar<SP>1</SP>-R<SP>1</SP>-Ar<SP>1</SP> is a fluorene group. (see Division C3). In Example 1 the above substrates are coated with a chloroform solution of a polyester in which R is p-phenylene and R<SP>1</SP> is -0-.
Patent GB-327170-A (GB)
Title: Improvements in or relating to the manufacture of production of the back-axle casings of motor-vehicles and similar products, and in tools or appliances to be used in such manufacture
IPC: B21D53/90
Filed: 1928-12-24
Abstract: 327,170. Scott, A. C. Dec. 24, 1928. Shafts.-Back axle casings for motor vehicles, and similar products are finally shaped and trued by mounting the gear casing d', Fig. 3, of the back axle on a collapsable die f which is mounted on a slide reciprocated by links f<6> from the press-head a. The work is positioned with one part of the axle casing extending over a die b which coacts with a die a<1>. The work is then turned end for end and the second part of the axle casing is shaped. A die c is placed manually over the free part of the axle casing and coacts with the collapsable die f to shape one half of the gear casing. The die f comprises an end portion f<2>, Fig. 5, wedgeshaped side segments f<3>, f<4> and a wedge f<5> which expands the segments on movement of the part f<5> by the links f<6>. In a modification, the axle casing is inserted in a die A, Fig. 1, provided with an ejector B and is operated on by a die D<1> which acts through a movable die E. The die E is provided with side lugs E<1> to receive the thrust of the die D' and serves to shape the throat joining the central portion of the casing to each axle sleeve.
Patent GB-368424-A (GB)
Title: Improvements in the manufacture and production of cyanamides of the alkaline earth metals
IPC: C01C3/16
Filed: 1930-12-17
Abstract: Alkaline earth cyanamides are obtained by leading ammonia and aliphatic unsaturated hydrocarbons over the oxides or carbonates of the alkaline earth metals, such as those of calcium or barium, at temperatures between about 400 and 1000 DEG  C.  Hydrogen is also obtained.  The oxides or carbonates employed may be from industrial or natural sources.  The hydrocarbons referred to are ethylene, propylene, butylene and acetylene.  The conversion may be increased by the presence of catalysts giving rise to hydrocyanic acid from hydrocarbons and ammonia.  Phosphates of the heavy metals of Groups 5-8 of the periodic system or of copper such as those of iron or molybdenum are the catalysts particularly referred to and may be used on carriers.  These phosphates may be mixed with moist china clay in the form of small balls and are ready for use after being kept in a drying cupboard until hard. Other catalysts, such as the oxides of nickel, chromium, copper, or of other heavy metals, or aluminium oxide especially when in the form of a gel, may be used.  The catalysts may be mixed with the alkaline earth oxides or carbonates but are preferably arranged in front of them so that the gas mixture first comes into contact with the catalyst.  Examples are given.  The Provisional Specification describes also the use of methane instead of unsaturated hydrocarbons.  Specification 346,463 is referred to.
Patent GB-1436088-A (GB)
Title: Control and monitoring devices for oil and gas burners
IPC: F23N5/08
Filed: 1974-09-02
Abstract: 1436088 Burner control LGZ LANDIS & GYR ZUG AG 2 Sept 1974 [7 Sept 1973] 38270/74 Heading F4T A control and monitoring device for oil or gas burners, comprises a three-member switch 14, 16, 17, for cutting in and out a fuel valve 18 and ignition device 15, a bimetallic relay 4 which closes the contacts 16, 17, for valve 18 after a time delay, and a flame relay 3 which holds the contacts closed, by a pawl 6 after de-energization of relay 4, and opens the contact 14 to which the ignition device and a parallel heating winding 10 of relay 4 are connected, wherein a restraining device 28, 29, is arranged between the armature 20 of relay 3 and an actuating member 7 of relay 3, which device temporarily prevents the armature from being pulled up so that the contact which switches the ignition device and heating winding opens with a delay. In operation, a temperature regulator 20 is closed and current flows to a burner motor 21 via the fixed contact of a switch 8, and to an amplifier 2 and a contact 16. Motor 21 drives a blower which pre-ventilates the burner combustion chamber. Current is supplied to winding 10 of relay 4 and to ignition device 15 via contacts 16, 14, which are closed. Bimetallic element 11 is heated and deflected in the direction of arrow 12, and moves member 7 to entrain a spring 13. If, after a time delay the spring moves over its dead centre, contact 14, together with contact 16, trips over to contact 17, and fuel valve 18 receives voltage so as to supply fuel to the burner. A spark from ignition device 15 ignites the air-fuel mixture, and a light sensor responds to the flame and switches relay 3 by way of amplifier 2. Due to member 29 lying above member 28 armature 26 of relay 3 is prevented from being attracted, until due to further heating, element 11 is further deflected. When the armature is pulled-in, pawl 6 engages member 5 and pulls contact 16 towards relay 3 and breaks the connection with contact 14. Heading winding 10, and ignition device 15, are cut out, and element 11 cools down and returns to its starting position with pawl mechanism 5, 6, holding contacts 16, 17, closed. The interval between production of the flame, and cutting out of ignition device 15, is the post-ignition time.
Patent GB-963714-A (GB)
Title: Bearing mounting for rotating bodies,especially for bodies tested in dynamic balancemachines
IPC: F16C27/02
Filed: 1961-10-27
Abstract: 963,714. Dynamic balancing machines. W. & T. AVERY Ltd. Oct. 27, 1961 [Nov. 10, 1960] No. 38469/61. Heading G1X. [Also in Division F2] A bearing mounting particularly suitable for rotating bodies tested in dynamic balance machines comprises a frame 1 on which a bearing 2 is supported by two identical spring systems positioned in one plane and preferably at 90 degrees to each other such that a centre line through each system intersects on the axis of the bearing. Each system is a combination of coil and leaf springs 5 and 7 respectively, one leaf spring being attached to each end of a housing 6 of the coil spring 5, the leaf springs also forming securing means of the whole to the frame 1. In addition two pairs of rod springs 3 and 4 support the bearing 2 by attachment to a base-plate formed at the lower end of the housing 6. The rod springs 3 positioned in a plane axially of the bearing, provide axial restraint thereof and rod springs 4 positioned in a plane transverse to the bearing axis offer radial restraint. Adjustment may be made to the coil and leaf spring position and rigidity, in accordance with the bearing loading conditions, by a threaded spindle 8 located in the frame 1 and by pneumatic or hydraulic means actuating a piston 10 located between the bearing 2 and the upper end of the spring housing 6. Further adjustment to rigidity may also be achieved by spindles 9 being pressed against the base-plate of the housing 6. The particular alignment of the rod springs acting in conjunction with the adjusting means facilitates a wide range of flexibility of mounting which is further enhanced by mechanical friction damping such that a bearing so mounted may be damped or undamped from complete rigidity to complete radial flexibility.
Patent GB-1503970-A (GB)
Title: Method and apparatus for enhancing and maintaining character quality in thermal printers
IPC: G06K15/10
Filed: 1975-09-19
Abstract: 1503970 Printer control circuits HEWLETTPACKARD CO 19 Sept 1975 [23 Sept 1974] 38531/75 Heading G4H In printing a slanted 5 Î 7 dot matrix character, command gates 213-219 are sequentially enabled for each column of the character by a recirculating shift register 201 co-operating with NOR gates 206-208 and inverters 202-205, whereby those of 7 thermal printing transducers 301-307 selected by a character generator (not shown) are sequentially operated, motion between the transducers and the printing medium producing the slant. In Fig. 2a each of the command gates 213-219 is enabled for 3 clock periods with a 1 clock period stagger except that gate 219 is enabled simultaneously with gate 213. Data for the last 3 dots of each column is retained in flip-flops 209-211 while the next column scan begins. No more than four of the thermal transducers can be energized simultaneously, saving battery losses and improving uniformity of printing. The duration for which each command gate is enabled may be automatically adjusted to compensate for variations in battery voltage, Fig. 6a (not shown). At the start of each line, a capacitor is charged from the battery to derive a time interval signal during which is are clocked into the shift register, the proportion of is to 0s in the register determining the duration of energization of the thermal transducers. The transistor driver circuits for the transducers may be on a single integrated chip.
Patent GB-1149975-A (GB)
Title: Separating acetylene and ethylene from gas mixtures
Inventor: PLATZ ROLF
IPC: C07C7/09
Filed: 1966-08-30
Abstract: 1,149,975. Cold separation of gas mixtures. BADISCHE ANILIN- & SODA-FABRIK A.G. 30 Aug., 1966 [31 Aug., 1965], No. 38593/66. Heading F4P. Ethylene and acetylene are together separated from a gas mixture containing relatively low boiling point components e.g. hydrogen, carbon monoxide and methane by cooling the feed mixture which has previously been freed from hydrogen sulphide and unsaturated C 3  to C 5  hydrocarbons to within a temperature range of -104‹ to -138‹ C. thereby condensing the ethylene and acetylene which is then withdrawn as product. The cooling is effected by indirect heat exchange with work-expanded residual gas.
Patent GB-1473768-A (GB)
Title: Surgical drape
IPC: A61B19/08
Filed: 1975-09-22
Abstract: 1473768 Surgical drape sheets JOHNSON & JOHNSON 22 Sept 1975 [12 Dec 1974] 38788/75 Heading A5R A surgical drape comprising a sheet of flexible material having a main portion at one end thereof, and a pair of spaced wings 60, 70 at the other end thereof and defining therebetween a gap, is provided with flaps 80, 80' each secured by adhesive or stitching to one respective wing along the side edges of said gap, whereby in use the leg of the patient is extended through the gap and the flaps are unfolded to overlie or underlie the opposed wing and the leg may then overlie the superposed layers. The drape is packaged with the flaps folded over their respective wings and the drape folded so that the drape may be placed over a patient, the folded wing portions B, C, unfolded around a leg and then the folded main portion A unfolded over the body of the patient. Alternative embodiments, Figs. 1-5 (not shown), may be provided with only one flap, and the flap may be secured to its wing along a side edge of the drape, intermediate a side edge and the gap, or adjacent the outer end of the wing, transverse to the gap. A reinforcement may be provided around the gap, Fig. 5 (not shown), comprising a sheet of absorbent material preferably with a sheet of plastics material interposed next to the drape material. The drape material may be woven, non-woven or plastics film.
Patent GB-1028095-A (GB)
Title: Improvements in or relating to semiconductor arrangements
IPC: H01L21/00
Filed: 1964-09-24
Abstract: 1,028,095. Semi-conductor devices. SIEMENS & HALSKE A.G. Sept. 24, 1964 [Sept. 25, 1963], No. 38896/64. Heading H1K. A semi-conductor body contains a doped zone 1, a surface region 1<SP>1</SP> of which is of enhanced conductivity. Material is alloyed with the main part of the doped zone through the surface region to form a PN-junction 6. The surface region has a metallic contacting layer 4 which extends to the vicinity of the recrystallization zone 2 formed by the alloying process. The contacting layer is separated from the alloying material remaining 3 by a marginal zone in which the PN-junction is exposed at the surface of the body. In the manufacture of such devices the material of the contacting layer initially covers the entire surface of the doped region. Some of it is dissolved by the alloying material during the alloying process to leave the PN- junction exposed around the remaining alloying material. The manufacture of germanium mesa transistors is described. In one method, antimony is deposited from the vapour phase on to the doped zone and completely alloyed in to form the region 1<SP>1</SP> of enhanced conductivity. A silver layer 4 is next deposited over the entire surface of this region to form the base contact. Gold is deposited on the area where the emitter electrode is to be formed and is alloyed to form droplets and thus break the silver layer. Aluminium/gold is now deposited over the gold and alloyed to form the emitter-base junction 6 which emerges in the trough 7 surrounding the alloyed material. In a variant the initial deposition and alloying of gold alone is omitted. In another variant the layer 1<SP>1</SP> of enhanced conductivity is formed as before and the alloying material next deposited. A silver layer is deposited over the entire surface and the assembly heated to form the emitter-base junction and break the silver layer. Although the devices produced are similar, with this variant the base contact may be made thicker. In another method, a layer of silver doped with antimony is deposited on a doped region of a germanium disc. The material to form the emitter is deposited on a portion of the layer and the assembly heated to form both the layer of enhanced conductivity and the emitter-base junction. Electrode wires 8 are fixed to the devices by known thermo-compression bonding methods. A portion of the base contact may first be strengthened by deposition of metal 12. The devices are mesa etched in known manner, and may be given a purifying etch in hydrogen peroxide during which the silver layer and the emitter electrode act as masks. It is stated that the base contact layer 4 may instead be chemically or electrolytically deposited and that it may be applied as a series of different metals which are partially alloyed to the semiconductor. Instead of germanium, silicon and other semi-conductors may be used.